Friedmann visual field analyser

analyser, Friedmann visual field

Instrument designed to examine the central visual field. It utilizes a single xenon discharge tube placed within an integrating bowl, in front of which are fenestrated plates which can present 15 different patterns composed of either two, three or four stimuli of variable intensity and brief duration. Mark II has two programmes with 18 and 31 patterns each. Seeautomated perimeter.

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